Download or read book The Ants written by Bert Hölldobler and published by Harvard University Press. This book was released on 1990 with total page 784 pages. Available in PDF, EPUB and Kindle. Book excerpt: From the Arctic to South Africa - one finds them everywhere: Ants. Making up nearly 15% of the entire terrestrial animal biomass, ants are impressive not only in quantitative terms, they also fascinate by their highly organized and complex social system. Their caste system, the division of labor, the origin of altruistic behavior and the complex forms of chemical communication makes them the most interesting group of social organisms and the main subject for sociobiologists. Not least is their ecological importance: Ants are the premier soil turners, channelers of energy and dominatrices of the insect fauna. TOC:The importance of ants.- Classification and origins.- The colony life cycle.- Altruism and the origin of the worker caste.- Colony odor and kin recognition.- Queen numbers and domination.- Communication.- Caste and division of labor.- Social homeostasis and flexibility.- Foraging and territorial strategies.- The organization of species communities.- Symbioses among ant species.- Symbioses with other animals.- Interaction with plants.- The specialized predators.- The army ants.- The fungus growers.- The harvesters.- The weaver ants.- Collecting and culturing ants.- Glossary.- Bibliography.- Index.

Download or read book Social Evolution in Ants written by Andrew F.G. Bourke and published by Princeton University Press. This book was released on 2019-12-31 with total page 544 pages. Available in PDF, EPUB and Kindle. Book excerpt: Biologists since Darwin have been intrigued and confounded by the complex issues involved in the evolution and ecology of the social behavior of insects. The self-sacrifice of sterile workers in ant colonies has been particularly difficult for evolutionary biologists to explain. In this important new book, Andrew Bourke and Nigel Franks not only present a detailed overview of the current state of scientific knowledge about social evolution in ants, but also show how studies on ants have contributed to an understanding of many fundamental topics in behavioral ecology and evolutionary biology. One of the substantial contributions of Social Evolution in Ants is its clear explanation of kin selection theory and sex ratio theory and their applications to social evolution in insects. Working to dispel lingering skepticism about the validity of kin selection and, more broadly, of "selfish gene" theory, Bourke and Franks show how these ideas underpin the evolution of both cooperation and conflict within ant societies. In addition, using simple algebra, they provide detailed explanations of key mathematical models. Finally, the authors discuss two relatively little-known topics in ant social biology: life history strategy and mating systems. This comprehensive, up-to-date, and well-referenced work will appeal to all researchers in social insect biology and to scholars and students in the fields of entomology, behavioral ecology, and evolution.

Download or read book Social Insects and the Environment written by Viraktamath and published by BRILL. This book was released on 2023-10-09 with total page 797 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume includes 370 papers presented by leading scientists at the 11th International Congress of IUSSI at Bangalore, from August 5-11, 1990. The papers which have been classified into 30 sections relate to the symposia papers of the Congress. These cover various frontiers of research on social insects such as evolution of sociality, polygyny, social polymorphism, kin-recognition, kin- selection, foraging strategies, reproductive strategies, biogeography and phylogenetics of bees and ants pollination ecology and management of pestiferous social insects. The most important feature about these papers in this publication is that the results are presented in a crisp, brief and precise manner. Because of the brevity it has been possible to bring together, in one publication, almost all aspects of research on social insects from all parts of the world. The time between presentation of papers at a Congress and publication has been avoided by publishing this volume on the eve of the Congress and this enables scientists to refer to the results immediately.

Download or read book Interindividual Behavioral Variability In Social Insects written by Robert L. Jeanne and published by CRC Press. This book was released on 2019-04-09 with total page 317 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book represents empirical studies of some aspect of the phenomenon of variability in social insect behavior. It illustrates the range of ways colony members can differ from one another and interprets the variability in terms of the external environment, social context, or individual experience.

Download or read book Organization of Insect Societies written by Jürgen Gadau and published by Harvard University Press. This book was released on 2009-02-28 with total page 638 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this landmark volume, an international group of scientists has synthesized their collective expertise and insight into a newly unified vision of insect societies and what they can reveal about how sociality has arisen as an evolutionary strategy. Jürgen Gadau and Jennifer Fewell have assembled leading researchers from the fields of molecular biology, evolutionary genetics, neurophysiology, behavioral ecology, and evolutionary theory to reexamine the question of sociality in insects. Recent advances in social complexity theory and the sequencing of the honeybee genome ensure that this book will be valued by anyone working on sociality in insects. At the same time, the theoretical ideas presented will be of broad-ranging significance to those interested in social evolution and complex systems.

Download or read book The Complex World of Ants written by Vonnie D.C. Shields and published by BoD – Books on Demand. This book was released on 2018-10-24 with total page 94 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ants play important roles in natural ecosystems. These eusocial insects are omnivorous feeders and live in a wide variety of habitats. They belong to the order Hymenoptera, and family Formicidae. There are more than 8800 described species that occur throughout the world. They have large heads, segmented antennae, and powerful jaws and undergo complete metamorphosis. In general, ants live typically in structured nest communities, forming nest sites in close proximity to moisture and food, underground, in ground-level mounds, or in trees. Among ant species, there is a wide range of interesting behaviors displayed. Many species are mutualistic, where they develop interactions with other insects and/or plants. Other species display parasitic relationships among each other. Still other species exhibit predatory behaviors. This book contains contributions written by experts in their respective fields and targets a wide audience. It is highly recommended as a valuable resource for general biologists, entomologists, ecologists, zoologists, and students and teachers in training in this subject matter.

Download or read book Parasites in Social Insects written by Paul Schmid-Hempel and published by Princeton University Press. This book was released on 2019-12-31 with total page 424 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book analyzes for the first time how parasites shape the biology of social insects: the ants, wasps, bees, and termites. Paul Schmid-Hempel provides an overview of the existing knowledge of parasites in social insects. Current ideas are evaluated using a broad database, and the role of parasites for the evolution and maintenance of the social organization and biology of insects is carefully scrutinized. In addition, the author develops new insights, especially in his examination of the intricate relationships between parasites and their social hosts through the rigorous use of evolutionary and ecological concepts. Schmid-Hempel identifies gaps in our knowledge about parasites in social insects and uses models to develop new questions for future research. In addition, issues that are usually considered separately--such as division of labor, genetics, immunology, and epidemiology--are placed in a common framework to analyze two of the most successful adaptations of life: parasitism and sociality. This work will appeal not only to practitioners in the fields of behavioral ecology and sociobiology, but also to others interested in host-parasite relationships or in social organisms, such as apiculturists struggling to overcome the problems arising from mite infestations of honeybee colonies.

Download or read book Pesticides written by R.P. Soundararajan and published by BoD – Books on Demand. This book was released on 2012-07-25 with total page 398 pages. Available in PDF, EPUB and Kindle. Book excerpt: Pesticides are considered as potential molecules to combat insects, pests, diseases and weeds in agricultural, horticultural cropping system as well as health management systems. Pesticides of chemical origin are highly effective against the target organism. However, the chemical pesticides have toxic effects on several non-target species and the growing environmental concerns raises the issues of safety and evaluation of toxicity. In this book the effects of chemical pesticides on fishes, earthworms, beneficial microbes and natural enemies in agricultural ecosystems are discussed. Furthermore, pesticides have the properties to disrupt endocrine and non-traditional pesticide compounds have been elaborately narrated. The recent technology on use of biomarkers in pesticide assay is described in two chapters. Some of plants having pesticidally active compounds are described. Use of biotechnological approaches for insect pest management and a new approach to recognize larva in the field by LIRA classifier system are two more interesting chapters of the book.

Download or read book The Scale written by and published by . This book was released on 1983 with total page 644 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Social Insects written by Wolf Engels and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 265 pages. Available in PDF, EPUB and Kindle. Book excerpt: Evolution of Castes in Insects l BERNHARD RENSCH The evolution of organisms in the succession of generations has been primarilly achieved through the appearance of new hereditary variants with minor deviations along with the development of stable structures and functions. Harmful mutants were eradicated either immediately or in the subsequent generations through the process of natural selection while unharmful or advantageous ones usually survived. As this process continued, many new races and species developed which possessed structures and functions of a rational nature and which became increasingly independent from their environment. These evolutionary tendencies were also promoted through either geographical, ecological, physiological or genetical isolation of populations. In some phylogenetic lines, there occurred an increase in the number of cells due to additional cellular divisions in the morphogenesis of structures. This opened up the possibility for the development of the division of labour within cellular groups leading to more complicated and consequently more successful functions of tissues and organs. A further advancement in the adaptation of a species to its environment was made possible through specialization for certain functions of whole individuals or groups of individuals.

Download or read book Toward a Practice of Autonomous Systems written by Francisco J. Varela and published by MIT Press. This book was released on 1992-04-02 with total page 546 pages. Available in PDF, EPUB and Kindle. Book excerpt: Artificial life embodies a recent and important conceptual step in modem science: asserting that the core of intelligence and cognitive abilities is the same as the capacity for living. The recent surge of interest in artificial life has pushed a whole range of engineering traditions, such as control theory and robotics, beyond classical notions of goal and planning into biologically inspired notions of viability and adaptation, situatedness and operational closure. These proceedings serve two important functions: they address bottom-up theories of artificial intelligence and explore what can be learned from simple models such as insects about the cognitive processes and characteristic autonomy of living organisms, while also engaging researchers and philosophers in an exciting examination of the epistemological basis of this new trend. Topics Artificial Animals • Genetic Algorithms • Autonomous Systems • Emergent Behaviors • Artificial Ecologies • Immunologic Algorithms • Self-Adapting Systems • Emergent Structures • Emotion And Motivation • Neural Networks • Coevolution • Fitness Landscapes Contributors H. Bersini, Domenico Parisi, Rodney A. Brooks, Christopher G. Langton, S. Kauffman, J.-L. Denenbourg, Pattie Maes, John Holland, T. Smithersm H. Swefel, H. Muhlenbein

Download or read book Soil Ecology written by P. Lavelle and published by Springer Science & Business Media. This book was released on 2007-05-08 with total page 678 pages. Available in PDF, EPUB and Kindle. Book excerpt: A number of excellent textbooks on general ecology are currently available but‚ to date‚ none have been dedicated to the study of soil ecology. This is important because the soil‚ as the ‘epidermis’ of our planet‚ is the major component of the terrestrial biosphere. In the present age‚ it is difficult to understand how one could be interested in general ecology without having some knowledge of the soil and further‚ to study the soil without taking into account its biological components and ecological setting. It is this deficiency that the two authors‚ Patrick Lavelle and Alister Spain‚ have wished to address in writing their text. A reading of this work‚ entitled ‘Soil Ecology’‚ shows it to be very complete and extremely innovative in its conceptual plan. In addition‚ it follows straightforwardly through a development which unfolds over four substantial chapters. Firstly‚ the authors consider the soil as a porous and finely divided medium of b- organomineral origin‚ whose physical structure and organisation foster the development of a multitude of specifically adapted organisms (microbial communities‚ roots of higher plants‚ macro-invertebrates).

Download or read book Six Legs Better written by Charlotte Sleigh and published by JHU Press. This book was released on 2007-03-05 with total page 512 pages. Available in PDF, EPUB and Kindle. Book excerpt: This “provocative, complex” cultural history examines how the study of ants influenced shifting perceptions of humanity in the nineteenth and twentieth centuries (Times Literary Supplement, UK). Ants long have fascinated linguists, human sociologists, and even cyberneticians. At the end of the nineteenth century, ants seemed to be admirable models for human life and were praised for their work ethic, communitarianism, and apparent empathy. They provided a natural-theological lesson on the relative importance of humans within creation and inspired psychologists to investigate the question of instinct and its place in the life of higher animals and humans. By the 1930s, however, ants came to symbolize one of modernity’s deepest fears: the loss of selfhood. Researchers then viewed the ant colony as an unthinking mass, easily ruled and slavishly organized. In this volume, Charlotte Sleigh uses specific representations of ants within the field of entomology from the late nineteenth to mid-twentieth centuries to explore the broader role of metaphors in science and their often unpredictable translations. Six Legs Better demonstrates the remarkable historical role played by ants as a node where notions of animal, human, and automaton intersect.

Download or read book Army Ants written by Daniel J. C. Kronauer and published by Harvard University Press. This book was released on 2020-10-06 with total page 385 pages. Available in PDF, EPUB and Kindle. Book excerpt: A richly illustrated, captivating study of army ants, nature’s preeminent social hunters. A swarm raid is one of nature’s great spectacles. In tropical rainforests around the world, army ants march in groups by the thousands to overwhelm large solitary invertebrates, along with nests of termites, wasps, and other ants. They kill and dismember their prey and carry it back to their nest, where their hungry brood devours it. They are the ultimate social hunters, demonstrating the most fascinating collective behavior. In Army Ants we see how these insects play a crucial role in promoting and sustaining the biodiversity of tropical ecosystems. The ants help keep prey communities in check while also providing nutrition for other animals. Many species depend on army ants for survival, including a multitude of social parasites, swarm-following birds, and flies. And while their hunting behavior, and the rules that govern it, are clearly impressive, army ants display collective behavior in other ways that are no less dazzling. They build living nests, called bivouacs, using their bodies to protect the queen and larvae. The ants can even construct bridges over open space or obstacles by linking to one another using their feet. These incredible feats happen without central coordination. They are the result of local interactions—self-organization that benefits the society at large. Through observations, stories, and stunning images, Daniel Kronauer brings these fascinating creatures to life. Army ants may be small, but their collective intelligence and impact on their environment are anything but.

Download or read book The Evolution of Social Wasps written by James H. Hunt and published by Oxford University Press. This book was released on 2007-03-27 with total page 280 pages. Available in PDF, EPUB and Kindle. Book excerpt: Social behavior occurs in some of the smallest animals as well as some the largest, and the transition from solitary life to sociality is an unsolved evolutionary mystery. In The Evolution of Social Wasps, James H. Hunt examines social behavior in a single lineage of insects, wasps of the family Vespidae. He presents empirical knowledge of social wasps from two approaches, one that focuses on phylogeny and life history and one that focuses on individual ontogeny, colony development, and population dynamics. He also provides an extensive summary of the existing literature while demonstrating how it can be clouded by theory. Hunt's fresh approach to the conflicting literature on sociality highlights how oft repeated models can become fixed in the thinking of the scientific community. Instead, Hunt presents a mechanistic scenario for the evolution of sociality in wasps that changes our perspective on kin selection, the paradigm that has dominated thinking about social evolution since the 1970s. This innovative new model integrates life history, nutrition, fitness and ecology in which social insect biologists will find a rich storehouse of ideas and information, and behavioral ecologists will find a bracing challenge to long accepted models. Engagingly written, bold, and provocative, The Evolution of Social Wasps marks a milestone in our understanding of one of lifes major evolutionary transitions - the origin of social behavior.

Download or read book Parasites and the Behavior of Animals written by Janice Moore and published by Oxford University Press. This book was released on 2002-01-31 with total page 338 pages. Available in PDF, EPUB and Kindle. Book excerpt: When a parasite invades an ant, does the ant behave like other ants? Maybe not-and if it doesn't, who, if anyone, benefits from the altered behaviors? The parasite? The ant? Parasites and the Behavior of Animals shows that parasite-induced behavioral alterations are more common than we might realize, and it places these alterations in an evolutionary and ecological context. Emphasizing eukaryotic parasites, the book examines the adaptive nature of behavioral changes associated with parasitism, exploring the effects of these changes on parasite transmission, parasite avoidance, and the fitness of both host and parasite. The behavioral changes and their effects are not always straightforward. To the extent that virulence, for instance, is linked to parasite transmission, the evolutionary interests of parasite and host will diverge, and the current winner of the contest to maximize reproductive rates may not be clear, or, for that matter, inevitable. Nonetheless, by affecting susceptibility, host/parasite lifespan and fecundity, and transmission itself, host behavior influences parameters that are basic to our comprehension of how parasites invade host populations, and fundamentally, how parasites evolve. Such an understanding is important for a wide range of scientists, from ecologists and parasitologists to evolutionary, conservation and behavioral biologists: The behavioral alterations that parasites induce can subtly and profoundly affect the distribution and abundance of animals.

Download or read book Invasive Forest Insects Introduced Forest Trees and Altered Ecosystems written by Timothy D. Paine and published by Springer Science & Business Media. This book was released on 2007-05-24 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt: Demand for timber and fibre continues to grow and is being met by increased reliance on plantation forestry. Many of the plantations that are being grown around the globe are non-native species that have characteristics of rapid growth and good commercial qualities. In some cases, the high rates of production are a result of the absence of native herbivore and diseases. This limited pest status is threatened as pest species move around the globe. At the same time there is concern about threats of these non-native plantation species on native communities and the impact of changing climates on forest productivity. This volume explores many of these issues for the first time.